Patents by Inventor Michael Mello

Michael Mello has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Surface characterization based on optical phase shifting interferometry
    Patent number: 7990543
    Abstract: Apparatus, techniques and systems for implementing an optical interferometer to measure surfaces, including mapping of instantaneous curvature or in-plane and out-of-plane displacement field gradients of a sample surface based on obtaining and processing four optical interferograms from a common optical reflected beam from the sample surface that are relatively separated in phase by ?/2.
    Type: Grant
    Filed: September 2, 2008
    Date of Patent: August 2, 2011
    Assignee: California Institute of Technology
    Inventors: Michael Mello, Ares J. Rosakis
  • Surface characterization based on lateral shearing of diffracted wave fronts to measure in-plane and out-of-plane displacement gradient fields
    Patent number: 7538891
    Abstract: Apparatus and techniques for using an optical shearing interferometry to obtain full field mapping of in-plane and out-of-plane displacement field gradients of a sample surface of a sample.
    Type: Grant
    Filed: October 2, 2006
    Date of Patent: May 26, 2009
    Assignee: California Institute of Technology
    Inventors: Michael Mello, Ares J. Rosakis